Computer freezes when you connect a USB device in Windows 8.1 or Windows Server 2012R2

Symptoms

Consider the following scenario:
  • You install update 2919355 on a computer that is running Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2.
  • You have a device that uses the AVStream class (such as a Bluetooth, USB, or PCI device) connected to the computer.
  • The computer sleeps or wakes.
In this scenario, the computer freezes or crashes.

Cause

This issue occurs because of a race condition in the power management threads in the Ks.sys file.

Resolution

To resolve this issue, install the update that is described in this article.

Update information

How to obtain this update

Windows Update
This update is available from Windows Update.
Microsoft Download Center
The following files are available for download from the Microsoft Download Center:
Operating systemUpdate
All supported x86-based versions of Windows 8.1Download Download the package now.
All supported x64-based versions of Windows 8.1Download Download the package now.
All supported x64-based versions of Windows Server 2012 R2Download Download the package now.

Note The update for Windows RT 8.1 can be obtained only from Windows Update.

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Prerequisites

To apply this update, you must be running Windows 8.1 or Windows Server 2012 R2.

Registry information

To apply this update, you do not have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this update.

Update replacement information

This update does not replace a previously released update.
File information

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about the AVStream class, go to the following Microsoft website: For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
Additional file information
属性

文章 ID:2966804 - 上次审阅时间:2014年6月10日 - 修订版本: 1

Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1, Windows RT 8.1, Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows Server 2012 R2 Standard

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